Number of arrays of 8 integers in -n..n with sum zero and the sum of every adjacent pair being odd.

A202079

Number of arrays of 8 integers in -n..n with sum zero and the sum of every adjacent pair being odd.

Terms

    a(0) =12a(1) =524a(2) =5832a(3) =34632a(4) =142692a(5) =462436a(6) =1264272a(7) =3044496a(8) =6644604a(9) =13406844a(10) =25370840a(11) =45516120a(12) =78055380a(13) =128783316a(14) =205485856a(15) =318414624a(16) =480831468a(17) =709627884a(18) =1026024168a(19) =1456353128a(20) =2032933188a(21) =2795035716a(22) =3789951408

External references